S10

If Gary Oak is headed for the Sinnoh region, then Ash Ketchum won’t be far behind! Ready to take on the Sinnoh League, Ash brings along Pikachu and meets up with Brock in Sinnoh, where the pair of Trainers are soon joined by a third—Dawn, a novice Pokémon Coordinator determined to follow in the footsteps of her mother. Both Ash and Dawn struggle with their respective paths, but it’s easy for them to make new friends, gaining new Pokémon like Turtwig and Piplup.

Spoiler warning: this article may contain major plot or ending details.

Ash and his friends

• Dawn is introduced as a new beginning Trainer. (DP001)
• Ash arrives in Sinnoh. (DP001)
• Brock rejoins Ash shortly thereafter. (DP002)
• Ash meets a new rival, Paul. (DP003)
• Ash and Brock meet Dawn and they decide to travel together. (DP003)
• Dawn has her first battle with Nando. After a battle with Ash, Nando decides to collect both Badges and Ribbons. (DP004)
• Dawn acquires a Pokétch in Jubilife City. (DP010)
• Dawn meets her first rival, Zoey. (DP011)
• Ash and his friends encounter Pokémon Hunter J, who steals Pokémon on the request of clients. (DP020)
• Jessie borrows Ash's Aipom and defeats Dawn in an unofficial Pokémon Contest. (DP022)
• At the Floaroma Contest, Dawn runs into Kenny, a childhood friend who is also journeying as a Coordinator. (DP026)
• Ash and his friends aid Cheryl in the Eterna Forest in her search for the Sweet Honey. (DP030 - DP032)
  • During the search, Ash and his friends run into Gardenia, an avid lover of Grass-type Pokémon. (DP031)
• Ash, Dawn, Brock, Jessie, and James enter the Pokémon Dress-Up Contest. Brock wins and receives an Egg. (DP033)
• Dawn battles Elite Four member Lucian. (DP035)
• Ash and his friends prevent the theft of the Adamant Orb, which was, unbeknownst to them, orchestrated by Team Galactic. (DP036)
• Paul battles Sinnoh League Champion Cynthia with the group watching. (DP040)
• Ash helps Gary protect some wild Shieldon from Pokémon Hunter J. (DP045)
• Ash and his friends meet Mira and help her rescue her Sandshrew's Poké Ball from a flooded town. (DP047)
• Dawn, Zoey, Nando, and Jessie compete in the Hearthome Contest. Dawn loses in the Performance Stage while her rivals advance to the Battle Stage. Nando defeats Zoey in the finals to win his second Ribbon. (DP049)
• The Hearthome City Tag Battle Competition takes place. (DP050 - DP052)
  • Ash, Dawn, and Brock are paired up with Paul, Conway, and Holly, respectively. (DP050)
  • Ash and his friends, along with their partners, advance to the semi-finals. (DP051)
  • Paul releases his Chimchar after the second round and Ash invites Chimchar to join his team. (DP051)
  • Ash and Paul defeat Brock and Holly in the semi-finals, and then Dawn and Conway in the finals to win the tournament and a pair of Soothe Bells. (DP052)

• This season marks the return of the anime in Bulgaria and Romania, following a seven-year hiatus after the airing of EP262; the Czech Republic, following a six-year hiatus after the airing of EP209; and in Poland, following a two-year hiatus after the airing of AG040.
• This is the last season to be dubbed by TAJ Productions.
  • This is also the last season to have background music produced by 4Kids Entertainment.
• This is the first season to incorporate the game name from its generation.

• Pokémon: Diamond and Pearl on Hulu

This article is part of Project Anime, a Bulbapedia project that covers all aspects of the Pokémon anime.